CN108869413A - Fan blade outer cover and electric fan - Google Patents
Fan blade outer cover and electric fan Download PDFInfo
- Publication number
- CN108869413A CN108869413A CN201810738665.0A CN201810738665A CN108869413A CN 108869413 A CN108869413 A CN 108869413A CN 201810738665 A CN201810738665 A CN 201810738665A CN 108869413 A CN108869413 A CN 108869413A
- Authority
- CN
- China
- Prior art keywords
- outer cover
- electric fan
- heat exchanger
- exchanger tube
- flabellum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 241000883990 Flabellum Species 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 11
- 239000005457 ice water Substances 0.000 claims description 2
- 241001075561 Fioria Species 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 235000020681 well water Nutrition 0.000 description 4
- 239000002349 well water Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0025—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using heat exchange fluid storage tanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a fan blade outer cover and an electric fan, wherein at least one part of the fan blade outer cover is formed by a heat exchange pipe (311), the heat exchange pipe (311) is provided with a flow inlet and a flow outlet, and heat exchange fluid flows in the heat exchange pipe (311) to exchange heat for air flow passing through the heat exchange pipe (311). The technical scheme of the invention effectively solves the problem that the electric fan with the thin-wall copper pipe network arranged between the machine body and the front cover in the prior art is complex in structure.
Description
Technical field
The present invention relates to small household appliances technical fields, and in particular to a kind of flabellum outer cover and electric fan.
Background technique
Currently, electric fan mainly drives fan blade rotation by motor, the wind of blowout is exchanged heat by convection current, is made one
The temperature decline of body, environment.But in the hot summer, the cooling rate of electric fan be far from air-conditioning cooling rate it is fast,
The wind of blowout cannot allow people moment to experience slight chill in the air, this is a limitation of electric fan.
For the limitation of electric fan, patent document CN204678567U discloses a kind of direct-firing well water air conditioner of copper pipe,
The direct-firing well water air conditioner of the copper pipe includes fan, water inlet pipe, thin wall type copper pipe network, outlet pipe and V-shaped rest, and the fuselage of fan is with before
Cover separate, fuselage be loaded on thin wall type copper pipe network rear portion, front shroud be mounted in foremost, thin wall type copper pipe network by whole copper thin-wall tube bending at
Involute concentric ring, multi-turn continuous bending, multiple concentric circle arrange that thin wall type copper pipe network is fixed on V-shaped rest in infundibulate,
Thin wall type copper pipe network is connect with water inlet pipe and outlet pipe, the lower well water of circulating temperature in thin wall type copper pipe network, and cold wind is from thin wall type copper
By reducing air themperature in pipe network gap.
Thin wall type copper pipe network is arranged in above-mentioned well water air conditioner between fuselage and front shroud, and structure is more complicated, higher cost.
Summary of the invention
The main purpose of the present invention is to provide a kind of flabellum outer cover and electric fan, with solve in the prior art fuselage with
The fan structure of thin wall type copper pipe network more complicated problem is set between front shroud.
To achieve the above object, the present invention provides a kind of flabellum outer cover, at least part of flabellum outer cover is by heat exchanger tube
It is formed, heat exchanger tube has flow inlet and outflow port, and heat exchanging fluid is flowed in heat exchanger tube to carry out to the air-flow for flowing through heat exchanger tube
Heat exchange.
Further, flabellum outer cover includes the front shroud and back cover being connected, and at least one of front shroud and back cover are by exchanging heat
Pipe is formed.
Further, heat exchanger tube is helically linear.
Further, flabellum outer cover further includes the cover circle for connecting front shroud and back cover.
Further, heat exchanging fluid is mixture of ice and water, and/or, heat exchanger tube is copper pipe.
The present invention also provides a kind of electric fans, including：Base, is connected to the defeated of motor at the motor being arranged on base
Flabellum on shaft and be located at flabellum outside flabellum outer cover, flabellum outer cover is above-mentioned flabellum outer cover, and heat exchanger tube is not
When work, electric fan is in normal blowing mode；When heat exchanger tube works, electric fan is in mode of blowing a cold wind over.
Further, electric fan further includes that the storage stream portion for storing heat exchanging fluid and driving heat exchanging fluid recycle in heat exchanger tube
The driving portion of flowing, storage stream portion are all connected with flow inlet and outflow port.
Further, electric fan further includes influent stream pipe and outflow tube, and one end of influent stream pipe is connect with flow inlet and the other end
It protrudes into the heat exchanging fluid in storage stream portion, electric fan further includes outflow tube, and one end of outflow tube is connect with outflow port and the other end
It protrudes into the heat exchanging fluid in storage stream portion.
Further, driving portion is arranged on influent stream pipe or outflow tube, and/or, driving portion is water pump, and/or, influent stream pipe
It is connect with flow inlet by the first connector, outflow tube is connect with outflow port by the second connector.
Further, base includes the head on chassis, the support rod being supported on chassis and the top that support rod is arranged in,
Motor and flabellum outer cover are installed on head.
Technical solution of the present invention has the following advantages that：At least part of flabellum outer cover is formed by heat exchanger tube, heat exchanging fluid
Heat convection can be carried out with flowing through the air-flow of heat exchanger tube when flowing in heat exchanger tube, there is no need between fuselage and front shroud for this
Heat exchanger tube is set, and structure is simpler, not only can satisfy installation requirements, but also may be implemented to exchange heat.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.In the accompanying drawings：
Fig. 1 shows the schematic front view of the embodiment of electric fan according to the present invention；
Fig. 2 shows the schematic side views of the electric fan of Fig. 1；
Fig. 3 shows the schematic front view of the heat exchanger tube of the electric fan of Fig. 1.
Wherein, the appended drawing reference in above-mentioned attached drawing is：
10, base；11, chassis；12, support rod；13, head；20, flabellum；30, flabellum outer cover；31, front shroud；311, it changes
Heat pipe；32, back cover；33, cover circle；41, stream portion is stored up；42, driving portion；43, influent stream pipe；44, outflow tube.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the flabellum outer cover 30 of the present embodiment includes the front shroud 31 and back cover 32 being connected, front shroud 31
It is formed by heat exchanger tube 311, heat exchanger tube 311 has flow inlet and outflow port, and heat exchanging fluid is flowed in heat exchanger tube 311 with to flowing through
The air-flow of heat exchanger tube 311 carries out heat exchange, and flabellum outer cover 30 is applied on electric fan, and when heat exchanger tube does not work, electric fan is in
Normal blowing mode；When heat exchanger tube works, electric fan is in mode of blowing a cold wind over.
Using the flabellum outer cover of the present embodiment, front shroud 31 is formed by heat exchanger tube 311, and heat exchanging fluid flows in heat exchanger tube 311
Heat convection can be carried out with flowing through the air-flow of heat exchanger tube 311 when dynamic, so that air-flow cools down rapidly when passing through heat exchanger tube 311, into
And make fan blowing cold air, it realizes the effect blown a cold wind over, improves the cooling rate of electric fan, cold wind is quickly and conveniently provided.
Meanwhile heat exchanger tube directly forms front shroud 31, there is no need to which heat exchanger tube is arranged between fuselage and front shroud, structure is simpler for this,
Not only installation requirements be can satisfy, but also cooling effect may be implemented, cooling effect is higher than electric fan, and energy-saving effect is better than air-conditioning.
In the present embodiment, as shown in figures 1 and 3, heat exchanger tube 311 is helically linear, and structure is simple, easy to process.
In the present embodiment, heat exchanger tube is copper pipe, and the coefficient of heat transfer of copper pipe is high, improves the efficiency of heat convection.Certainly, it changes
Heat pipe can also use the pipe of other materials, however it is not limited to this.
The present invention also provides a kind of electric fan, which includes：Base 10, connects the motor being arranged on base 10
It connects the flabellum 20 on the output shaft of motor and is located at the flabellum outer cover 30 in the outside of flabellum 20, flabellum outer cover 30 is above-mentioned
Flabellum outer cover.
In the present embodiment, as Fig. 1 shows, electric fan further includes storage stream portion 41 and the driving heat exchanging fluid for storing heat exchanging fluid
The driving portion 42 circulated in heat exchanger tube 311, storage stream portion 41 are all connected with flow inlet and outflow port, and structure is simple, uses
It is convenient.
In the present embodiment, electric fan further includes influent stream pipe 43 and outflow tube 44, and one end of influent stream pipe 43 and flow inlet connect
Connect and the other end protrude into the heat exchanging fluid in storage stream portion 41, electric fan further includes outflow tube 44, one end of outflow tube 44 with go out
Head piece connection and the other end protrude into the heat exchanging fluid in storage stream portion 41, are attached using influent stream pipe 43 and outflow tube 44, even
It connects conveniently.
Specifically, influent stream pipe 43 is connect with flow inlet by the first connector, and outflow tube 44 and outflow port pass through the second connector
Connection, simple installation.
In the present embodiment, driving portion 42 is arranged on influent stream pipe 43.Certainly, driving portion also can be set on outflow tube.
In the present embodiment, driving portion 42 is water pump, and water pump is easy to use, low in cost.
In the present embodiment, base 10 includes chassis 11, the support rod 12 being supported on chassis 11 and is arranged in support rod
The head 13 at 12 top, motor and flabellum outer cover 30 are installed on head 13, i.e., electric fan is stand fan.Certainly, electric wind
The fan of fan or other forms, however it is not limited to this.
In the present embodiment, heat exchanging fluid is mixture of ice and water.The temperature of mixture of ice and water much use environments use, system
Cold effect is more preferable.At this point, storage stream portion is water storage case, influent stream pipe 43 and outflow tube 44 are respectively water inlet pipe and outlet pipe.Wherein, ice
Aqueous mixtures can be realized by being put into ice cube, ice crystal box etc. in water.Certainly, heat exchanging fluid is not limited to this, can basis
Concrete condition is selected.
The operating mode of electric fan is illustrated below：
Normal blowing mode：When electric fan is in normal blowing mode, by the first connector, the second connector, water inlet pipe, go out
The cooling assembly of water pipe, water storage case and water pump composition is in off position, can be stored.At this point, motor drives
Flabellum 20 rotates, and a part of front shroud 31 as flabellum outer cover can not only guarantee outlet air, but also can satisfy the demand of installation.Before
Cover 31 is made by helically linear copper pipe.
It blows a cold wind over mode：When, needing to realize in the hot summer fast cooling refrigeration, the system that wind utilizes the fan can be filled
Cold mode.At this point, motor drives flabellum 20 to rotate, the water pump starting after opening refrigeration mode, in water storage case.After water pump starting,
Ice water enters the copper pipe of front shroud 31 by water pump from water inlet pipe, then flows out of the water outlet pipe, to periodically realize that water route is followed
Ring.When flabellum rotates, drive air-flow is after the entrance of back cover 32, and by the copper pipe surface of front shroud 31, the coefficient of heat transfer of copper pipe is high, can
To pass through heat convection, so that incoming air cools down rapidly when passing through copper pipe surface, so that fan blowing cold air, drops rapidly
Low ambient temperature realizes fast-refrigerating, both can be than traditional fan fast-refrigerating, blowing cold air, while than air-conditioning power saving, behaviour
Make convenient and efficient.
As interchangeable embodiment, back cover is formed by heat exchanger tube, alternatively, front shroud and back cover are formed by heat exchanger tube.
As interchangeable embodiment, influent stream pipe is connected on tap.
As interchangeable embodiment, flabellum outer cover is not provided with cover circle, i.e. flabellum outer cover only includes front shroud and back cover.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of flabellum outer cover, which is characterized in that at least part of the flabellum outer cover (30) is formed by heat exchanger tube (311),
The heat exchanger tube (311) has flow inlet and outflow port, and heat exchanging fluid is flowed in the heat exchanger tube (311) with described to flowing through
The air-flow of heat exchanger tube (311) carries out heat exchange.
2. flabellum outer cover according to claim 1, which is characterized in that the flabellum outer cover (30) includes the front shroud being connected
(31) it is formed with back cover (32), at least one of the front shroud (31) and the back cover (32) by the heat exchanger tube (311).
3. flabellum outer cover according to claim 1, which is characterized in that the heat exchanger tube (311) is helically linear.
4. flabellum outer cover according to claim 2, which is characterized in that the flabellum outer cover (30) further includes before connection is described
Cover the cover circle (33) of (31) and the back cover (32).
5. flabellum outer cover according to any one of claim 1 to 4, which is characterized in that the heat exchanging fluid is mixed for ice water
Object is closed, and/or, the heat exchanger tube is copper pipe.
6. a kind of electric fan, including：Base (10), is connected to the defeated of the motor at the motor being arranged on the base (10)
Flabellum (20) on shaft and be located at the flabellum (20) outside flabellum outer cover (30), which is characterized in that the fan
Leaf outer cover is flabellum outer cover described in any one of claims 1 to 5, and when the heat exchanger tube does not work, the electric fan is in
Normal blowing mode；When the heat exchanger tube works, the electric fan is in mode of blowing a cold wind over.
7. electric fan according to claim 6, which is characterized in that the electric fan further includes storing the heat exchanging fluid
The driving portion (42) that storage stream portion (41) and the driving heat exchanging fluid circulate in the heat exchanger tube (311), the storage stream
Portion (41) is all connected with the flow inlet and the outflow port.
8. electric fan according to claim 7, which is characterized in that the electric fan further includes influent stream pipe (43) and outflow tube
(44), one end of the influent stream pipe (43) is connect with the flow inlet and the other end protrudes into the heat exchange stream stored up in stream portion (41)
In body, the electric fan further includes outflow tube (44), and one end of the outflow tube (44) is connect with the outflow port and the other end
It protrudes into the heat exchanging fluid in storage stream portion (41).
9. electric fan according to claim 8, which is characterized in that the driving portion (42) is arranged in the influent stream pipe (43)
Or on the outflow tube (44), and/or, the driving portion (42) is water pump, and/or, the influent stream pipe (43) and the influent stream
Mouth is connected by the first connector, and the outflow tube (44) is connect with the outflow port by the second connector.
10. electric fan according to any one of claims 6 to 9, which is characterized in that the base (10) includes chassis
(11), the support rod (12) that is supported on the chassis (11) and setting the top of the support rod (12) head (13),
The motor and the flabellum outer cover (30) are installed on the head (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738665.0A CN108869413A (en) | 2018-07-06 | 2018-07-06 | Fan blade outer cover and electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738665.0A CN108869413A (en) | 2018-07-06 | 2018-07-06 | Fan blade outer cover and electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869413A true CN108869413A (en) | 2018-11-23 |
Family
ID=64299854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810738665.0A Withdrawn CN108869413A (en) | 2018-07-06 | 2018-07-06 | Fan blade outer cover and electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880076A (en) * | 2021-01-29 | 2021-06-01 | 刘贵峰 | Noise-reduction refrigeration safe bladeless fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116110U (en) * | 1991-12-30 | 1992-09-16 | 宋乃尊 | Electric fan |
| EP2829737A1 (en) * | 2013-07-23 | 2015-01-28 | Alfa Laval Corporate AB | Fan guard and air heat exchanger provided with such fan guard |
| CN106247511A (en) * | 2016-10-19 | 2016-12-21 | 珠海格力电器股份有限公司 | Floor type air conditioner fan |
| CN205980129U (en) * | 2016-08-29 | 2017-02-22 | 杨汉杰 | Water -cooled fan |
| CN206944386U (en) * | 2017-06-28 | 2018-01-30 | 嘉兴麦望网络科技有限公司 | A kind of refrigerant electric fan |
| CN208417086U (en) * | 2018-07-06 | 2019-01-22 | 珠海格力电器股份有限公司 | Fan blade outer cover and electric fan |
-
2018
- 2018-07-06 CN CN201810738665.0A patent/CN108869413A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116110U (en) * | 1991-12-30 | 1992-09-16 | 宋乃尊 | Electric fan |
| EP2829737A1 (en) * | 2013-07-23 | 2015-01-28 | Alfa Laval Corporate AB | Fan guard and air heat exchanger provided with such fan guard |
| CN205980129U (en) * | 2016-08-29 | 2017-02-22 | 杨汉杰 | Water -cooled fan |
| CN106247511A (en) * | 2016-10-19 | 2016-12-21 | 珠海格力电器股份有限公司 | Floor type air conditioner fan |
| CN206944386U (en) * | 2017-06-28 | 2018-01-30 | 嘉兴麦望网络科技有限公司 | A kind of refrigerant electric fan |
| CN208417086U (en) * | 2018-07-06 | 2019-01-22 | 珠海格力电器股份有限公司 | Fan blade outer cover and electric fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880076A (en) * | 2021-01-29 | 2021-06-01 | 刘贵峰 | Noise-reduction refrigeration safe bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |
|
| WW01 | Invention patent application withdrawn after publication |